package io;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class FOSDemo {
    public static void main(String[] args) throws IOException {


        File file = new File("fos.dat");
        FileOutputStream fos = new FileOutputStream(file);
        fos.write(124);
        System.out.println("写出完毕！");
        fos.close();

    }
}
